A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

Do you know who was buried in John's tomb?

Can you spot the hidden girl in the picture below?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

In the image below, can you find the value of an angle(y)

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

The Little ant seems to be always confused. Do you know why?

What is the longest word in the dictionary?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.